6 January 2015 Forming near-field helical intensity using a binary vortical axicon
Author Affiliations +
Proceedings Volume 9450, Photonics, Devices, and Systems VI; 945013 (2015) https://doi.org/10.1117/12.2070413
Event: Photonics Prague 2014, 2014, Prague, Czech Republic
Abstract
A helical intensity distribution was created in a near-field when Gaussian laser beam was focused by a binary phase spiral axicon with high numerical aperture. It was shown by 3D-simlation using the Comsol software and natural experiments with near-field microscope NT-MDT Integra Spectra. Experimental measurements and numerical simulations are in good agreement.
© (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Sergey A. Degtyarev, Sergey A. Degtyarev, Svetlana N. Khonina, Svetlana N. Khonina, } "Forming near-field helical intensity using a binary vortical axicon ", Proc. SPIE 9450, Photonics, Devices, and Systems VI, 945013 (6 January 2015); doi: 10.1117/12.2070413; https://doi.org/10.1117/12.2070413
PROCEEDINGS
7 PAGES


SHARE
Back to Top